DETERMINATION OF GERMANIUM IN ENVIRONMENTAL-SAMPLES BY ELECTROTHERMAL ATOMIC-ABSORPTION SPECTROMETRY WITH CONTINUOUS-FLOW HYDRIDE GENERATION IN DILUTE PERCHLORIC-ACID SOLUTION
文献类型：期刊论文
| 作者 | NI, ZM; BIN, H |
| 刊名 | JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
 |
| 出版日期 | 1995 |
| 卷号 | 10期号:10页码:747-751 |
| 关键词 | GERMANIUM IN SITU PRECONCENTRATION CONTINUOUS FLOW HYDRIDE GENERATION ELECTROTHERMAL ATOMIC ABSORPTION SPECTROMETRY PERCHLORIC ACID |
| 英文摘要 | A method has been developed for the sensitive determination of germanium by continuous how hydride generation electrothermal atomic absorption spectrometry with trapping in a graphite atomizer pretreated with palladium. The optimal acidities using different acids for the generation of germanium hydride were studied. Germanium was found to give a sharp analytical signal in 0.05 moll(-1) H2SO4, 0.15 moll(-1) HNO3, and 0.10-0.15 moll(-1) HCl. Beyond these optimal acidities, significant loss of sensitivity resulted. Among the acids investigated only perchloric acid provided a wider range of acidity (0.15-0.6 moll(-1)) giving maximum efficiency for the production of germanium hydride, Interferences from Ni, Cu, Fe, Mn and Sn on the generation of the hydride from 0.5 moll(-1) HClO4 were minimized by the addition of 0.1% EDTA. The characteristic mass which gave an integrated absorbance of 0.0044 s was found to be 46 pg. An absolute detection limit (3s) of 36 pg was obtained. The method was applied successfully in the determination of germanium in coal fly ash, soil and river sediments following the decomposition of the samples by heating in a mixture of acids using a pressure bomb. |
| 研究领域[WOS] | Chemistry ; Spectroscopy |
| WOS记录号 | WOS:A1995TB75500008 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/24431]  |
| 专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | NI, ZM,BIN, H. DETERMINATION OF GERMANIUM IN ENVIRONMENTAL-SAMPLES BY ELECTROTHERMAL ATOMIC-ABSORPTION SPECTROMETRY WITH CONTINUOUS-FLOW HYDRIDE GENERATION IN DILUTE PERCHLORIC-ACID SOLUTION[J]. JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY,1995,10(10):747-751. |
| APA | NI, ZM,&BIN, H.(1995).DETERMINATION OF GERMANIUM IN ENVIRONMENTAL-SAMPLES BY ELECTROTHERMAL ATOMIC-ABSORPTION SPECTROMETRY WITH CONTINUOUS-FLOW HYDRIDE GENERATION IN DILUTE PERCHLORIC-ACID SOLUTION.JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY,10(10),747-751. |
| MLA | NI, ZM,et al."DETERMINATION OF GERMANIUM IN ENVIRONMENTAL-SAMPLES BY ELECTROTHERMAL ATOMIC-ABSORPTION SPECTROMETRY WITH CONTINUOUS-FLOW HYDRIDE GENERATION IN DILUTE PERCHLORIC-ACID SOLUTION".JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY 10.10(1995):747-751. |
入库方式： OAI收割
来源：生态环境研究中心
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